docstr: Add the command input options.
docstr_tok: ["Add","the","command","input","options","."]
code: def add_module_input_arg(self):
      """
      Add the command input options.
      """
      self.arg_input_group.add_argument(
          "--video_stream",
          type=str,
          help="path to video stream, can be a video file or stream device number.",
      )
  
imports: import argparse
  import glob
  import os
  import signal
  import sys
  import cv2
  import paddle
  from ppdet.core.workspace import load_config
  from ppdet.core.workspace import merge_config
  from ppdet.engine import Tracker
  from ppdet.utils.check import check_config
  from ppdet.utils.check import check_gpu
  from ppdet.utils.check import check_version
  from ppdet.utils.logger import setup_logger
  import paddlehub
  from .tracker import StreamTracker
  from paddlehub.module.module import moduleinfo
  from paddlehub.module.module import runnable
label_desc: Use image node_id 10 for calling the FairmotTracker_1088x608 obj's underlying member method code with example usage: obj.add_module_input_arg() without return types